Wiilling-machine



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3 Sheets-Sheet 1. J. L. BOGBRT. MILLING MACHINE.

No. 542,461. Patented July 9, 1895.

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J. L. BOGBRT.

' MILLINGMAQHINE. No'. 542,461. Patented July 9, 18953..

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MILLING MAG-EINE. l

No. 542,461. Patented July 9, 1895.

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UnirrEp STATEE c PATENT EErcE.

JOHN L. BOGERl, FLUSHING, NEW YORK.

MILLING-MACHINE.

SPECIFICATON forming part of Letters Patent No. 542,461, dated July 9, 1895.

Application tiled September 29, 1894. Serial No. 524,424. (No model.)

To. a/ZZ whom t may concern.- v

Be it known that I, JOHN L. BOGERT, a resident of Flushing, in the county of Queens and State of New York, have invented certain new and useful Improvements in Milling Machines, of which thefollowing is a specification.

` My invention relates more particularly to double-head milling-machines; and one of the objects of the invention is to permit the headstocks to be moved longitudinally without reference to the pulleys or means for turning the spindles. This is accomplished by supporting the drivin g-pulleys and their attached gear independently Aof the head-stocks and arranging the gears on the head-stocks so that they will be operated by the gears connected with said pulleys in whatever position the head-stocks may be.

A further object of the invention is to permit the head-stocks to advance quite close to each other, so as to enable small work to be operated upon simultaneously by the tools carried by both head-stocks; To permit this action the inner sides or walls of the knee or elevating-slide are provided with pockets or recesses to receive the ends of the head-stocks to enable them to approach near each other when the knee is raised. If the knee were not provided with these pockets thel headstocks when moved inwardly, as set forth,

would encounter said knee when it was raised and thus prevent said'head-stocks from approaching nearer than the outer lines of the knee.

The invention further consists in the novel details of improvement and the combinations of parts that will bemorefully hereinafter set forth and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming part hereof, wherein- Figure 1 is a front elevation cfa milling-machine embodying my improvements. Fig. 2 is a rear elevation of said machine. Fig. 3 is a plan View of a portion of the machine, clearly showing the pockets or recesses in the knee for receivingthe head-stocks when they approach each other; and Fig. 4 is a plan view of one of the head-stocks.

In the accompanying drawings, in which similar numerals of reference indicate correspending parts in the several views, the numeral 1 indicates the base of a milling-ma- -guidd to have vertical movement between said columns. The guides 4or ways 8 8 are preferably .carried by an anchor or plate 9 removably carried by the knee 4 and held thereto by screws or bolts 10.V By adjusting the anchor 9 wearb'etwee'n the several guides 4 or ways may be readily taken up.

The knee 4 may be raised and lowered by a screw 11, operated by gearing shown in dotted lines in Fig. 3; but it will be understood that the knee 4 may be guided and operated in any suitable manner.

The head-stocks 3 are carried upon the columns'2 in suitable guides or ways 12, so as to slide to and fro along thev tops ot' the columns. -The head-stocks 3 are each shown provided with a screw-shaft 13, journaled in suitable bearings 14 on said stocks and provided with hand-Wheels 15, the screws 13 working in suitable threadednuts 16, carried bythe columns 2. By turning the screws 13 the head-stocks can be fed toward and from each other, so as to permit the tools to operate on work of different sizes carried on. the knee 4. A suitable adjustable stop is .also preferably provided for each head-stock to regulate its movement, and for this purpose I have shown screw shafts or rods 17, carried by the columns 2 and receiving apertured lugs or blocks 18, which are carried by the headfstocks 3, and slide freely on the shafts or rods 17.

The blocks'18 may have threaded studs 18, adapted to receive nuts 18",which studs pass through apertured lligs 19 on the head-stocks 3, whereby said blocks can be adjustably held on the head-stocks.

20 are jam-nuts on the screw shafts or rods 17, arranged to be moved along said shafts or IOO rods to the desired positions and to arrest v the movement of the blocks 18, so as to arrest the head-stocks at the proper point. By adjustingA the nuts 20v to the desired position-v the movement of the head-stock can be accurately gaged.

The head-stocks 3 3 are adapted to be moved inwardly toward each other and over the knee or elevating-slide, so as to operate-upon smalll the tops of the columns 2 2 the head-stockscan be pushed inwardly into the pocketsor recesses 4X without interferingwith the knee. i

Bypreference the inner sidesv orf-ends 3@ of the head-stocks 3 arebeveled forwardly, ask 2o indicated in Figs. l, 2, and 3, andthepocketsv 4X inthe kneev4are correspondingly shaped or beveled. (See Fig.` 3.) By5this means-the desi-red movement of thehead-stocksis permitted without sacrificingstrengtha When 'itfA 2 5 is ldesired to hold thehead-stocks-3 stationary upon the-c0lumns;2,l said stocks maybe provided with side lugs orl websb, havingap-l ertures to receive bolts 3C, provided with heads arranged to bear inthe ways-12vcnrthe 3o columns` 2, whereby` when thefnuts-3d 0n the bolts 3c are tightened-thehead-stockscanbe v held in-any desiredposition.

In order to permit the head-stocks33fto move freely alongthe tops of ycolumns 2 without interference-from thedriving dev-ices or belting,I have a1ranged, the pulleys vfor `driv-v ing the head-stock spindles,k 2l on separate, shafts thatare carried independentlyof the,

head-stocks. For this purpose thespindles2l 4o are journaled in bearings-onposts=22 .carriedby thehead-stocks, said spindles being each provided with a. gear-wheelv 23.. The gearwheels 23 mesh with corresponding pinions 24 on shaftsjournaled in bearings on brackets,- 45 25 rigidly secured to the columns 2. (SeeF-ig.- 2.) The brackets 25 have two arms 25a, which4 carryl the bearings for the pinions 24. The pinions 24 are long, so that the gears123 will remain in mesh during the to-and-fro move-v 5o ment of the head-stocks, saidl pinionsbeing somewhat longerthanthe longitudinal move The shaftsof therpinions 24 carry thecone-pulleys26- ment allowed the head-stocks 3.

for driving the spindles 2l. 55 The brackets-25 are madein suitablesl-iape,

preferably` of cast metahand provided with,

stocks can be moved to different-positions their spindles will be turned by the enga-gement of thc wheels 23 with the pinions-24in 65 all positions. By this means ,the pulleys 26 will always remain inthe proper position rel-` atively to their-driving-belts. I have also shown devices for feeding the carriage 60 on the knee or elevating-slide 4, these devices deriving motion from the pinion 24. For this purpose one of the brackets 25 is provided with bearings 28, in which are journaled a shaft 29, carryinga gear-wheel 30, that meshes with the pinion 24. Upon the shaft 29 is also secured a bevel-gear 3l, which meshes with a corresponding gear 32 ona vertical shaft-33,` that is journaled nearits upper end in suitable bearings 34 on the bracket 25er on ythe column 2.v The lower end of the shaft 33 is shown journaled in bearings 35 carried "by a bracket 36' suitably secured to the base 1 or column 2. The shaft 33 also carries a bevel-gear 37 that meshes with a-similar gear `3S carried by a shaft 39'journaled in bearings 40 on the bracket 36. On the-shaft 39 is a spur-wheeler pinion 4l meshing with asimilarfwheel42 ona shaft 43 jonrnaled in bearings' 44- on the bracket 36,thevshaft 43 carrying a cone-pulley 45. The gears 4l and` 42 are preferably interchangeable, and for this purpose are detachably connected with the' shafts 39 and 43, and may-be held on. said shafts by nuts.l 39@ and 43a. By interchanging said-,gearsthe speed of rotation of shaft.

43 may beV altered as maybe desired. The bracket 36,with the, respectivebearings 35, 40,and 44, maybe made in` a single castingto combine-'rigidity of structure with simplicity of construction.

, 461isa-cone-pulley carriedv by'a column2 in line with the pulley 45, whereby the pulley 45 can drive the pulley, 46 whenv they are connectedbyinsuitable-belt. (Not shown.) The pulley, 46 iscarried byfa shaft 47, journaled insuitable bearings 48, carried by a bracket 49, secured on'l the column 2. The shaft 47 is connected by a suitable universal joint 50 withatelescopic shaft 5l, which is connected bygauniversaljoint 52with aWorm-shaft 53, journaled in pivotal bearings 54on the back of the knee or elevating-slide 4. The opposite end of worm-shaft 53 is movably connected at 53a with a lever 55, pivoted at 56 onthe knee '4.v Theworm 53 meshes with a suitable worm- Wheel 57, connected with a spur-wheel 57, journaled on the knee 4,v which wheel 57fl 'meshes wil h a pinion or spur-wheel 58, carried upon the feed-screw 59, journaled on the carriage- 60 and connectedby any suitable gearingwith the table v6l, which isy carried in suitable guideson said1carriage, whereby it may bev moved to and fro along thelatter to adjust the work relativelyto the spindles v2l on the head-,stocks 3.- The screw59may be provided with a cranky 62for operating it by hand.

The arrangement` of the above-described parts is such that Whenthepinion 24 .turnsit will transmit motion through the shafts 33 43 IOC) IID

5l 53, worm-wheel 57, and the described gearing, dac., to the shaft 59 to feed the table-6l along the carriage 60. The carriage 60 in this case is held stationary upon the knee 4,fand for thispurpose said knee may be provided with bolt-holes 4a (see Fig. 3) to receive bolts 4b from the carriage 60. The table 6l can be returned by turning the crank 62, and to permit this and at the same time arrest the feed of the table by the described feeding devices I have provided athrow-out device which is arranged as follows: On the long arm of the lever55 is a stud 63, located near a recess or opening 64 in said lever, said stud bearing against a toe 65 on a rod or bolt 66, arranged t0 slide in bearings 67 on the knee 4. The rod or bolt 66 has a head 68, which is rounded orbeveled on its upper end, a spring 69, located between the bearing 67 and the head 68, acting to normally hold the rod or bolt 66 elevated, so as to hold the stud 63 against the toe 65. In this position of the parts the lever 55 will be so held thatthe worm 53 will be in mesh with the gear 57. The table 6l on'one side is provided with a groove 70, adapted to receive the head 7l ofa rod or bolt 72, provided with a clamping-nut 73 tohold said rod or bolt in position, whereby said rod or bolt can be adjusted along the table 6l. The rod or bolt 72 is adapted to engage the head 68 of the rod 66 to depress the latter at the proper time to release the lever 55.

The operation is as follows: The rod or bolt 72 is rst adjusted to the position desired to throw out the gearing. As the table 6l moves along the carriage, the tools carried by the spindles 2l will operate on the work upon the table 6l, and when the rod or bolt 72 encounters the head 68 it will depress the rod or bolt A66. The toe 65 will thereupon be carriedbelow the stud 63, .whereupon the lever 55 will be released. A weight 74 attached to said lever will then act to turn it, whereby the worm 53 will be disengaged from the gear 57 and the table 6l will come to rest. The shaft 59 can now be turned by the crank 62, to return the carriage to the normal position. The upper end of lever 55 can next be swung outwardly, which will raise the worm 53 into mesh with the gear 57.

Having now described my invention, what- I vclaim is l. In a milling-machine, the combination of a head stock, with a pulley carried independently of said head-stock and gearing between the spindle of thehead-stock and said pulley, said head stock being arranged to move parallel to the aXis of said pulley, the pinion of said gearing being wholly disconnected from the head stock, the gear wheel carried bythe head stockbeing arranged to travel along said pinion while in mesh, substantially as described.

2. In a milling machine, the combination of a head stock having a spindle and agear wheel carried thereby, with a pinion along which said `gear can move, and a pulley connected with said pinion, said pulley and pinion being carried independently of said head stock and having no supporting connection therewith, so that theheadstock and its spindle and gear can move along said pinion Without .correspondingly moving said pinion, substantially as described.

3. In a milling machine, the combination of ahead stock havingaspindleand agear wheel,

said head stock being adapted to move to-andthe head stock, a long pinion carried thereby to mesh with said gear wheel and a pulley connected with said pinion, the pinion being entirel'y separate from the head stock, so that Athe head stock and its spindle and gear can move along said pinion without correspondingly moving said pinion, substantially as described. 4

4. Ina milling machine, the combination of .a column having ways and a head stock 5. In a milling machine, the combination of y a column and a head stock adapted to move along the same, with a knee or elevating slide f carried independently of the head stock and having a recess or pocket to receive said headstock,'and ways or guides between the inner .corners of the column and the knee as and for4 the purposes specified. e f 6. In a millingmachine, the combination of a columnl 'and a head-stock adapted to be fro, with a bracket carried independently of moved along the same, the side or end of said head stock being beveled inwardly, with a knee having a pocket or recess also beveled to receive said head stock, substantially as described.

7. In a milling machine, the combination of a base, and two columns, and a head stock adapted to be moved along said columns, with a knee located between said columns and guided thereby and carriedindependently of the head stock by ways on the inner corners of said column and knee, saidknee having pockets or recesses at its sides to receive said head stock, as and for the purposes set forth.

8. In a milling machine, thecombination of a pulley and a pinion, and a bracket carrying the same,with a shaft carried by said bracket, a gear wheel and a bevel wheelcarried by said shaft, another shaft 33` carrying a bevel wheel to mesh with the first mentioned bevel Wheel, a shaft 43 having a pulley and gearing between said shafts, a shaft 5l, a pulley connected therewith by a universal joint and a worm shaft connected with the shaft 5l by a universal joint, substantially as described.

`9. The combination of two parallel shafts 39, 43 and a shaft 33 at right angles thereto, intermeshing miter gears on the shafts 33 and 39, and intermeshing spur wheels 4l, 42 on the shafts 39 and 43, and means for detachably connecting said gears with said shafts 39 and 43, substantially as described.

10. ln a milling machine, the combination of a knee and a table supported thereby, with gearing 57, 57a 5S and 59 to move said table, a Worm to mesh with the Worm 57, means for operating said worm, a lever to disengage said Worm from said Worm 57a and means for holding and releasing said lever, as and for A the purposes specified.

ll. In a milling machine the combination of a knee, a table carried. thereby, gearing to move said table and a Worm to operate said gearing, with a Weighted lever` to move said Worm into and out of mesh With said gear, a

- sliding rod to hold said lever in its normal position, and means connected with said table to operate said rod, substantially as described.

JOHN L. BOGERT.

Vitnesses:

T. F. BoURNE, WM. S. TISDALE, 

